Oskar paul lochmann



(Nd Model.)

0. P. LOCHMANN.

MECHANIGALLY PLAYED MUSICAL INSTRUMENT.

No. 510,351. Patented 1360.5,1893.

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UNITED ST res PATENT OFFICE.

()SKAR PAUL LOCIIMANN, OF LEIPSIO-GOIILIS, GERMANY.

MECHANlCALLY-PLAYED MUSICAL INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 510,351, dated December5, 1893.

Application filed July 24, 1893- Serial No. 481,368. (No model.)

To all wit/0727, it may concern.-

Be it known that I, OsKAR PAUL LocHMANN, a subject of the King ofSaxony, and a resident of the city of Leipsic-Gohlis, in the Kingdom ofSaxony, Germany, have invented certain new and useful Improvements inMechanically-Played Musical Instruments; and I do hereby declare thatthe following is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to an improvement in mechanically played musicalinstruments of the kind that are constructed with steel sounding tonguesor teeth and are provided with perforated note sheets, the noteperforations having the form of ordinary holes, and the object of theinvention is to enable the note sheet having perforations of the saidsimple form to actuate the striking wheels direct so as to cause theteeth of these to strike the sounding tongues. This object is attainedby the mechanism shown in the accompanying drawings, in which Figures 1and 2 are sectional views of the same in two different positions.

(6 is a striking wheel, 0 a steel sounding tongue of the music works,and N the note sheet having ordinary holes for note perforations.Striking wheel a in common with all the other striking wheels of themusic works is mounted on a rod cl in such a way that in addition to itsrotary motion it can only perform, on its rod (1, a vertical movement toand from the note sheet. This effect is obtained by making rod (1 of arectangular horizontally thin cross section the flat sides being alittle narrower than the bore a of striking wheels at, which, mounted inthis manner may be moved vertically up and down on red (Z to an extentsufficient for the engagement of their teeth in, and disengagement fromthe note sheet while their displacement in any other direction islimited to a minimum. Fixed underneath the bar on which rod d is carriedthere is a spring (1 which keeps the striking wheel pressed against thenote sheet so that this latter may slide over the teeth of the wheel.When, upon the forward travel of the note sheet a note perforationarrives over atooth--tooth 1 for example said tooth in consequence ofstriking wheel a being moved upward on its red by the action of springat will enter such perforation. Upon the further forward travel of thenote sheet, tooth l is carried with it thereby turning striking wheel around on its axis so that tooth 3 strikes steel tongue 0. Tooth l isthen slid or pressed out or" the perforation in the note sheet, strikingwheel a being at the same time pressed downward and so turned round thattooth 5 is brought to bear against the note sheet and owing to thepressure of spring (1 against the wheel, caused to spring into the firstnote perforation that arrives over it.

A striking mechanism in which the striking wheels are also actuateddirect by the note sheet provided with perforations of the form ofordinary holes has already been described by me in a specificationaccompanying an application for Letters Patent, but in that mechanismthe striking wheels are mounted on a circular rod with play, so as toturn and be radially displaceable thereon by reason of the bore of thestriking wheels being larger than the rod. This arrangement had thedisadvantage that the striking wheels in addition to the desiredmovement perpendicular to the note sheet could also easily perform alateral or radial movementwhich had a disturbing eitect on the action ofthe instrument. It was therefore desirable to suppress such lateralmovement and I now attain this end by means of a striking wheel rod of athin rectangular cross sectional form with its horizontal sides slightlynarrower than the diameter of the bore of the striking wheels.

lVhat I claim as my invention, and desire to secure by Letters Patent,is-

In music works with steel sounding tongues and perforated note sheet astriking wheel Ct mounted to turn on a rod (1 and to be displaceablethereonin a vertical direction, said rod (1 being of a thin rectangularcross sectional form with its horizontal sides slightly narrower thanthe diameter of the bore a, in combination with a spring d, for thepurpose specified, substantially as described and shown.

In testimony whereof I sign this specification in the presence of twosubscribing witnesses.

OSKAR PAUL LOOHMANN. lVitnesses:

MAX LOOHMANN, M. DIEDERICH.

